Presentation Wenzel WG IMP 6th meeting 11 06 20

Ecological ship specifications:Realisation at the RoPAX GR12 ferriesfor SCANDLINESP+S WERFTEN GmbH P+S WERFTEN GmbHSite Peene‐Werft Wolgast Site Volkswerft StralsundSchiffbauerdamm 1 An der Werft 517438 Wolgast 18439 StralsundGermany Germanywww.pus‐werften.de • info@pus‐werften.deContent1. About the P+S yard locations history products2. Energy efficient ship concepts3. Practical implementations of energy saving measures at theScandlines RoPAX ferries GR12 Optimised hull shape (CFD – calculations and basin tests) Optimised propulsion concepts Other measures Dual fuel conversion4. Conclusions1. About the P+S yardFounded June 08, 2010: P+S WERFTEN GmbH is a young company,merged from two shipyards:PEENE‐WERFT GMBHSite Wolgast, GermanyP+S WERFTEN GmbHVOLKSWERFT STRALSUND GMBHRegistered Office: WolgastSite Stralsund, GermanyHeadquarters: StralsundP+S yard: Sites, Data, FactsStralsund WolgastP+S yard: Sites, Data, FactsHeadquartered in Stralsund, Germany2 x 62 years of experience in shipbuilding1,925 highly specialized employees, 290 engineersMore than 2,300 new buildings have been delivered tocustomers worldwideExamples for the products producedSince 1948 ... more than 2,300 new buildings delivered to customersLight Torpedo Attack Craft „Libelle“ Cable Laying Vessel Emergency Towing Vessel34 units 4 units 1 unitStern Trawler Type „Ivan Shankov“Fishery Protection Vessel Spill Response Vessel (SUBS) „Arkona“16 units3 units unitContainer Vessel 1400 TEUContainer Vessel 4000 TEU Anchor Handling Tug /Supply Vessel16 units7 units (AHTS) 12 unitsConcepts of vessels operated with alternative energyExamples Vessels operating with modernsail concepts (SKYSAIL/BELUGA)Vessels operating withFLETTNER-rotors(E-Ship 1, ENERCON)Vessels operating with fuel cellsMS ALSTERWASSERAs long as these and other technologiesare not technically matured yards andowners have to go small steps based onthe state of the artRoPAX ferry GR12RoPAX ferry GR12 for Scandlines:An innovative energy-optimised ferry projectThe GR 12 –ferry: General technical dataMeasures for energy saving1. CFD analysis, simulation studies and extensive basin tests to optimisethe hull2. A dedicated propulsion system focussed on Redundancy (max safety for the passengers and the crew) Flexibility (most efficient mode for every navigational situation)3. Waste h eat recovery wherever it is possible, heat exchangers in use for the cooling systems and the exhaust gasof the main engines, diesel generators and the harbour generator tosave electrical energy for heating heat recovery wheels in the AC-plants using the energy of theexhausted air prom the accommodation areas4. Frequency converters to operate all main electrical drives most efficient5. Minimising the energy for the AC-system by: Windows with a low sun factor but a big transmission factor (0,26/0,6) Injector hoods in galleys for minimisation the air volume to beair-conditioned6. Investment for the future: reservation of space for a LNG-fuel-plantThe ferry destinationsPort of Gedser withoperational challenges forarrival and departure becauseof strong crossing current andvery limited spacePort of Rostock with speedlimitations for passing the sea canalSpecific operational conditionsShallow water effects:• Squat effect• Big bow and stern wave• Trim increases dramaticallyFor reaching a certain speed moreenergy needed than in deep water!CFD analysis, simulation studies and basin testsAbove the red line:Traditional hull shapeBelow the red line:New hull shapeThe power needed to drivethe vessel through the watercould be reduced significantlyby a carefully optimisation ofthe hull formBasin testsInvestigation of the hydro-dynamic properties in the test basins of theHVSATesting differentbulbous bow andtrim wedgesConcepts for saving energy andto counter prospective challengesThe propulsion conceptTraditional: Two propellers – with or without bow rudderor: Double ender solution – thrusters and propellersGR12: Centre propeller and two wing thrusters to: Optimise the manoeuvrability Maximise the flexibility and redundancy for the operation Maximise the efficiency in all operation modesProp. plant: 2 x gen-sets 4300 kW each, 3 x main engines 4500 kW eachvia gear box on a CPP-propeller, 1 harbour gen-set 1450 KWOperational profile of the propulsion system120 minutes per turn, including 15 min. for on-/off-loadingGedser Channel Free sailing in “Deep Water” ChannelSailing time 15 min 23 min 60 min 19.3 kn 22 minEngines 1 Main 2 Main 2 Main 2 Main 2 Mainrunning Generator Generators Generators Engines GeneratorsDiesel1,000 kW 8,000 kW 8,000 kW 7,300 kW 2,000 kWPowerPosition Channel Free sailing in “Deep Water” Channel RostockSailing time 21 min 64 min 18.1 kn 20 min 15 minEngines 2 Main 2 Main 1 Main 2 Main 1 Mainrunning Generators Generators Engine Generators GeneratorDiesel8,000 kW 8,000 kW 3,700 kW 2,000 kW 1,000 kWPowerOptimised centre‐ and wing thrusters propellersFeathered positionof centre propellerblades if propulsionby wing thrustersonlyInvestment for the future: Prospective dual-fuel operation ofthe main engines and gen-setsConsidering the TIER 3 regulationscoming into force January 2015Scandlines reserved at deck 1 and 2an area of abt. 2000 m3 for theaccommodation of technicalalternatives to carry:a) An LNG-plant (tanks, vaporisers)b) A scrubber plant or othertechnologies for reducing theexhausted gas emissions (SOx)Challenges for the harbourinfrastructure:• Provision and save operationof LNGConclusions1. The consequent application of the available technical solutions causedsignificant energy savings compared to a traditional ferry of the samedimensions: 25% reduction of fuel consumption increasing of the transportation capacity by 130%i. e. fuel consumption per transported car reduced by 65%2. The drivers for this efforts are: The need to compete with alternative transportationroutes (Scandinavian bridges/bridge projects) The development of the fuel costs (4 times more than 2010) The new regulations (TIER 3, Sulphur Emission Controlled Areas)2. If LNG for dual-fuel concepts shall be used for these passenger ferries asafe infrastructure for LNG bunkering has to be established until 2015Thank you for your attention